The NSW Greens say the latest audit of the state's electricity sector shows the government could have been doing more to reduce prices.

Greens MP John Kaye says it is money that could have been returned to electricity customers in the form of lower bills.

"Instead they took the money and bleated on about the impact of the carbon price on electricity household prices," he said.

"The reality is the biggest culprit in this was not Julia Gillard and the carbon price. The biggest culprit in rising power bills was the O'Farrell government and their continued taking of larger and larger profits from the electricity industry."

Electricity retailers to charge up to $130 in early termination fees

Electricity retailers in NSW will be allowed to charge up to $130 in early termination fees from next March, under a proposal by the state's independent pricing body.

In a public hearing this morning, public interest groups expressed concern over the maximum $130 cap proposed by IPART, the state's Independent Pricing and Regulatory Tribunal.

Representatives from the Public Interest Advocacy Centre, (PIAC) said the figure was too high because some providers in Victoria have a $20 exit fee.

IPART Chairman Peter Boxall said there are number of differences between the two jurisdictions, and that some exit fees in Victoria were above $130 and others below.

Free trade is the oldest argument in federal politics and the issue that literally defined the federation era but opposition exists to the TPP, courtesy of the Investor-State Dispute Resolutions clause.